When to plant an avacado tree in the garden?

[DustyTV]

My grandad potted an avacado pip about a year before he died, it started growing and sprouting just after he died.
The tree is now aprox 4.5 feet tall and 4.5 years old. My DB would like to know when he should plant it in the garden and also how should he go about it?

Grandad was the only greenfingered one in the family so none of us know how or when to do this.

TIA

Are you in the UK? If so it will die if you plant it out - they don't like temperatures below about 10C.

I have a lovely avocado grown from stone too - tis a beautiful plant and about 2ft at the mo, like Snorkle I'm fairly certain that it wouldn't survivie outdoors in the UK. I think it's kind of a conservatory type plant - mine is spending time in the greenhouse now and is loving it but i'll bring it in before it gets cold.

I don't think it isn't going to bear fruit or cope with the UK weather...

info here: www.fruitexpert.co.uk/GrowingAvocados.html

Don't plant it out! will definitely die. My granny had a book on avocado pits and it said that you should keep on chopping their main stalk/trunk off to make them branch into a more attractive plant, but don't do that just on my advice!

Thanks everyone I will let my DB know, he will probably keep it in the greenhouse at my nana's.